下顎枝垂直骨切り術と下顎枝矢状分割術を併用して治療を行った下顎非対称を伴う顎変形症の３症例の術後評価

DOI 被引用文献4件
  • 大庭 康雄
    徳島大学大学院ヘルスバイオサイエンス研究部口腔顎顔面矯正学分野
  • 永島 優子
    徳島大学大学院ヘルスバイオサイエンス研究部口腔顎顔面矯正学分野
  • 森山 啓司
    徳島大学大学院ヘルスバイオサイエンス研究部口腔顎顔面矯正学分野

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  • Evaluation of a Combination of Intraoral Vertical Ramus Osteotomy and Sagittal Split Ramus Osteotomy in Three Cases with Asymmetric Mandible

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Intraoral vertical ramus osteotomy (IVRO) has become a useful surgical management to obtain better functional and esthetic results for patients with mandibular prognathism. Especially, unilateral IVRO performed in combination with sagittal splitting ramus osteotomy (SSRO) on the contralateral side has become a popular surgical management for mandibular prognathism with skeletal facial asymmetry. In this paper, three patients with asymmetric mandibles who underwent unilateral IVRO are reported, with evaluation of skeletal changes during pre-and post-operative treatment using frontal and lateral cephalometric radiographs. No remarkableskeletal shift of the mandible after surgery was observed in all cases, whereas cephalometric analysis indicated the slight positional change of condylar and posteroinferior and lateral jaw movements in two of the three cases. In occlusion, the unilateral IVRO seemed to be a useful technique for mandibular prognathism with skeletal facial asymmetry. However, the occlusal adjustment in postoperative treatment and further follow-up are required.

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